What Hollywood Can Teach Us About running surfaces

https://wiki-room.win/index.php?title=11_Ways_to_Completely_Revamp_Your_running_tracks

Asphalt - Now you would believe that asphalt is simply as bad as concrete, but it is not. It's really about 8 times "softer". The real problem with operating on asphalt roadways is not the hardness, but the camber